package com.thomas.restapi.web;

import com.thomas.restapi.model.User;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.*;
import java.util.*;

/**
 * @author thomas_liu
 * @date  2018/7/26 14:12
 * @desciption UserController
 * @blog http://blog.thomas8341.com
 */
@RestController
@RequestMapping(value="/users")
public class UserController {

    static Map<Long, User> users = Collections.synchronizedMap(new HashMap<Long, User>());

    @ApiOperation(value="获取用户列表", notes = "")
    @RequestMapping(value="/", method=RequestMethod.GET)
    public List<User> getUserList(){
        //处理"/users/"的GET请求，用户获取用户列表
        //还可以通过@RequestParam从页面中传递参数来进行查询条件或者翻页信息的传递
        List<User> r = new ArrayList<User>(users.values());
        return r;
    }

    @ApiOperation(value="创建用户", notes="根据Users对象创建用户")
    @ApiImplicitParam(name="user", value = "用户详细实体user", required = true, dataType = "user")
    @RequestMapping(value="/", method=RequestMethod.POST)
    public String postUser(@ModelAttribute User user){
        //处理"/users/"的post请求，用来创建User
        //除了@ModelAttribute绑定参数之外，还可以通过@RequestParam从页面中传递参数
        users.put(user.getId(), user);
        return "success";
    }

    @ApiOperation(value="获取用户详细信息", notes="根据url的id来获取用户详细信息")
    @ApiImplicitParam(name="id", value = "yonghuID", required = true, dataType = "Long", paramType = "path")
    @RequestMapping(value="/{id}", method = RequestMethod.GET)
    public User getUser(@PathVariable long id, @ModelAttribute User user){
        //处理"/users/{id}"的GET请求，用来获取url中id值的User信息
        //url中的id可通过@PathVariable绑定到函数的参数中
        return users.get(id);
    }

    @ApiOperation(value="更新用户详细信息", notes="根据url的id来制定更新对象，并根据传递过来的user信息来更新用户详细信息")
    @RequestMapping(value="/{id}", method = RequestMethod.PUT)
    public String updateUser(@PathVariable long id, @ModelAttribute User user){
        //处理"/users/{id}"的PUT请求，用来更新User信息
        User u = users.get(id);
        u.setName(user.getName());
        u.setAge(user.getAge());
        users.put(id, u);
        return "success";
    }

    @ApiOperation(value="删除用户", notes="根据url的id来指定删除对象")
    @ApiImplicitParam(name ="id", value="用户ID", required = true, dataType = "Long", paramType = "path")
    @RequestMapping(value="/{id}", method = RequestMethod.DELETE)
    public String deleteUser(@PathVariable long id, @ModelAttribute User user){
        //处理"/users/{id}"的DELETE请求，用来删除User信息
        User u = users.get(id);
        users.remove(u);
        return "success";
    }

}
